The most common side effects of sildenafil are listed below. These side effects may vary depending on the condition that is being treated. Tell your healthcare provider if you have any of these side sildenafil citrate drug effects that bother you. Pain in your muscles, back, arms, or legs There may be other side effects of sildenafil that are not listed here. Contact your healthcare provider if you think you are having a side effect of a medicine.
It can be exposed to temperatures between 59 F to 86 F (15 C to 30 C) for shorter periods of time, such as when transporting it. Sildenafil oral liquid should be stored at room temperature below 86 F (30 C) or in the refrigerator, between 36 F to 46 F (2 C to 8 C). Throw away any remaining liquid 60 days after it has been mixed for you by a pharmacist or healthcare professional. Sildenafil injection is usually given by a healthcare provider in a hospital or clinic. You will not store it at home. In the U.S., you can report side effects to the FDA at or by calling 800-FDA-1088.
| Point | Explanation | Advice |
|---|---|---|
| Onset of Action | Usually 15-30 mins | Take on an empty stomach for faster effect |
| Avoid Alcohol | Can decrease effectiveness and increase side effects | Limit consumption |
| Follow Dosage Instructions | Do not exceed prescribed dose | Use exactly as directed |
In Canada, you can report side effects to Health Canada at or by calling 866-234-2345. While less common, the most serious side effects of sildenafil are described below, along with what to do if they happen. Sildenafil may cause allergic reactions, which can be serious.
Stop taking sildenafil and get help right away if you have any of the following symptoms of a serious allergic reaction.
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| Viagra Generic | 50mg | 20 Pills | 40.52€ 38.59€ | |
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| Kamagra | 100mg | 180 + 6 Pills | 436.79€ 415.99€ |
Swelling of the face, lips, mouth, tongue, or throat Itching, skin rash, or pale red bumps on the skin called hives Sildenafil may cause an unwanted erection that is persistent, painful, and that may occur without sexual arousal. Permanent damage to the penis may occur if priapism is not treated quickly. Stop taking sildenafil and get emergency help if you have any of the following symptoms of priapism.
Erection lasting for more than four hours Erection that is unrelated to sexual stimulation Sildenafil can cause mild, temporary vision changes such as seeing a blue tint, abnormal colors, blurry vision, or sensitivity to light. Though rare, some people have reported permanent vision loss.
Eur Urol 2002; 41(4): 382–386.CrossRefGoogle ScholarPubMed Sildenafil citrate (Viagra) for the treatment of erectile dysfunction in men with Parkinson’s disease. Mov Disord 2000; 15(2): 305–308.3.0.CO;2-W>CrossRefGoogle ScholarPubMed Bethesda: American Society of Health-System Pharmacists. Accessed on 31 December 2022 via Scholar Management of sexual dysfunction in Parkinson’s disease. Ther Adv Neurol Disord 2011; 4(6): 375–383.CrossRefGoogle ScholarPubMed Accessed on 31 December 2022 via Scholar Salonia, A, Rigatti, P, Montorsi, F. Sildenafil in erectile dysfunction: a critical review.
Curr Med Res Opin 2003; 19(4): 241–262.CrossRefGoogle ScholarPubMed London: The Royal Pharmaceutical Society of Great Britain. Accessed on 31 December 2022 via Scholar Truven Health Analytics, Greenwood Village, Colorado, USA. Accessed on 31 December 2022 via Scholar Copyright © 2022, Treasure Island (FL): StatPearls Publishing LLC.Google Scholar Summary of product characteristics – Viagra 25 mg film-coated tablets. Electronic Medicines Compendium: Viagra 25 mg film-coated tablets – summary of product characteristics (SmPC) – (emc). Accessed on 31 December 2022 via Scholar Accessibility compliance for the HTML of this chapter is currently unknown and may be updated in the future. Stop taking sildenafil and get help right away if you have sudden vision loss in one or both eyes. Sudden hearing loss has been reported after taking sildenafil. This may occur along with dizziness and ringing in the ears. Stop taking sildenafil and get help right away if you have sudden hearing loss or suddenly have trouble hearing as well as usual. Sildenafil may cause a mild and temporary drop in blood pressure. You may be at a higher risk if you have certain health conditions or take blood pressure medicines. If you feel faint or dizzy, lie down. Tell your healthcare provider right away if you have any of the following symptoms of low blood pressure. You may be at higher risk for this if you take a blood thinner medicine.
This demonstrates the potential for lower dosing with similar therapeutic outcomes. The bioavailability of sublingual sildenafil may rival that of intravenous methods, bypassing first-pass metabolism. This indicates a higher efficiency and faster therapeutic onset compared to oral administration, which has a bioavailability around 41%. The Movement Disorders Prescriber's Guide to Parkinson's Disease , pp. 459 - 472Publisher: Cambridge University PressPrint publication year: 2025 Bernard, BA, Metman, LV, Levine, L, Ouyang, B, Leurgans, S, Goetz, CG.
Sildenafil in the treatment of erectile dysfunction in Parkinson’s disease. Mov Disord Clin Pract 2017; 4(3): 412–415.CrossRefGoogle ScholarPubMed Hussain, IF, Brady, CM, Swinn, MJ, Mathias, CJ, Fowler, CJ. Treatment of erectile dysfunction with sildenafil citrate (Viagra) in parkinsonism due to Parkinson’s disease or multiple system atrophy with observations on orthostatic hypotension. J Neurol Neurosurg Psychiatry 2001; 71(3): 371–374.CrossRefGoogle ScholarPubMed Raffaele, R, Vecchio, I, Giammusso, B, Morgia, G, Brunetto, MB, Rampello, L. Efficacy and safety of fixed-dose oral sildenafil in the treatment of sexual dysfunction in depressed patients with idiopathic Parkinson’s disease. Tell your healthcare provider if you get nosebleeds often while taking sildenafil. If your nosebleed is severe or will not stop after applying pressure, get help right away. People who are allergic to any of the following should not take sildenafil. Any of the ingredients in the specific product dispensed Your pharmacist can tell you all of the ingredients in the specific sildenafil products they stock.
Find out more about saving content to Google Drive. Book: The Movement Disorders Prescriber's Guide to Parkinson's Disease Exports To: United States Of America United Kingdom Australia Canada Germany United States Of America United Kingdom Australia Canada Germany Established in the year 1982, Welcome Healthcare is a prominent Exporter , Wholesaler, Retailer and Trader of Wholesaler, Exporter and Trader of Pharmaceutical Injection, Eye Drops, Cancer Medicines, Anti Ageing Tablets,Anti Diabetic Medicines,Blood Pressure Medicines,Insulin, Hepatitis Medicine,Paon Killers,ED Medicines,Anti Anxiety Tablets and much more. We work with the support of our diligent and well-trained professionals who help us to provide our reliable products for various healthcare requirements. We work in a vast marketing network and maintain huge distribution network. Our products are sourced from authentic vendors and are supplied to several regions of the nation at the market leading prices.
We deal in all Branded,Genric Companies. Sildenafil is commonly used for the following conditions. Erectile dysfunction, a condition where you have trouble getting or keeping an erection Pulmonary arterial hypertension, a condition where you have high blood pressure in the blood vessels that carry blood from your heart to your lungs Sildenafil may also be used for other conditions as determined by your healthcare provider. Sildenafil works by blocking an enzyme in the body called PDE5, which helps relax certain blood vessels. For erectile dysfunction, it increases blood flow to the penis when aroused. Sildenafil should not be taken while you are using certain other medicines. Before taking sildenafil, tell your healthcare provider about any prescription or over-the-counter (OTC) medicines, vitamins/minerals, herbal products, and other supplements you are using.
| Condition | Recommended Practice | Notes |
|---|---|---|
| Temperature | Store below 25°C | Keep away from moisture |
| Light Exposure | Store in a cool, dry place | Protect from light |
| Humidity | Keep in original packaging | Prevent degradation |
See the Interactions section for more details.
This makes it easier to get and keep an erection. For pulmonary arterial hypertension, sildenafil relaxes the blood vessels in the lungs. This lowers blood pressure and reduces strain on the heart. 10 mg/mL powder for oral suspension 20 mg, 25 mg, 50 mg, 100 mg oral tablets Sildenafil is also available in an injectable form that is usually given by a healthcare provider in a hospital or clinic. Sildenafil oral tablets should be stored at room temperature, between 68 F to 77 F (20 C to 25 C). Do not take sildenafil unless it has been prescribed to you by a healthcare provider. Do not share sildenafil with other people, even if they have the same condition as you.
To save this book to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle. Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi.
‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply. Find out more about the Kindle Personal Document Service. Book: The Movement Disorders Prescriber's Guide to Parkinson's Disease To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox. Keep sildenafil out of the reach of children. If you keep sildenafil oral liquid in a refrigerator, make sure to keep it away from children who also use the refrigerator. Sexual activity can put extra strain on your heart, which may be unsafe for people with certain health problems, such as a recent heart attack. Talk to your healthcare provider to see if your heart is strong enough for sex. If you feel chest pain, dizziness, or nausea during sex, stop and contact your healthcare provider right away. Sildenafil does not protect against sexually transmitted infections, including HIV. Sildenafil belongs to a group of medicines, known as phosphodiesterase-5 (PDE-5) inhibitors, which are used to treat erectile dysfunction or pulmonary arterial hypertension.